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www.ener&b.corn Helena, MT 077 -472 -0711 • Billings, W 800- 735 -4489 • Casper, WY 888- 235 -0515 <br />A""a 'w$Am ye t I Gillette, WY 866 -686 -1175 • Rapid City, So 888- 672 -1225 • College Station, TX 888 - 690 -2218 <br />QA /QC Summary Report <br />Prepared by Casper, WY Branch <br />Client: Cotter Corporation <br />Report Date: <br />08/29/13 <br />Project: Schwartz -GW 8/2/13 S27063 <br />Run: ICPMS2 -C 130809A <br />08/09/13 17:14 <br />Work Order: <br />C13080122 <br />FAnalyte Count <br />Result <br />Units RL <br />° /6REC <br />Low Limit <br />High Limit RPD <br />RPDLimit Qual <br />Method: E200.8 <br />Uranium <br />ND mg /L <br />Analytical Run: ICPMS2- C_130809A <br />Sample ID: ICV 3 Initial Calibration Verification Standard <br />Sample ID: LCS3 -38581 <br />08/09/13 16:15 <br />Arsenic <br />00516 <br />mg /L 0.0010 <br />103 <br />90 <br />110 <br />0.0010 <br />Molybdenum <br />0.0513 <br />mg /L 0.0010 <br />103 <br />90 <br />110 <br />106 <br />Uranium <br />0.0515 <br />mg /L 0.00030 <br />103 <br />90 <br />110 <br />85 115 <br />Method: E200.8 <br />Batch: 38581 <br />Sample ID: MB -38581 <br />3 Method Blank <br />Run: ICPMS2 -C 130809A <br />08/09/13 17:14 <br />Arsenic <br />0.0003 mg /L <br />0.0003 <br />Molybdenum <br />ND mg /L <br />8E -05 <br />Uranium <br />ND mg /L <br />9E -06 <br />Sample ID: LCS3 -38581 <br />3 Laboratory Control Sample <br />Run: ICPMS2- C_130809A <br />08/09/13 17:18 <br />Arsenic <br />0.505 mg /L <br />0.0010 <br />101 <br />85 115 <br />Molybdenum <br />0.532 mg /L <br />0.0010 <br />106 <br />85 115 <br />Uranium <br />0.576 mg /L <br />0.00030 <br />115 <br />85 115 <br />Sample ID: C13080122 -001 BMS3 <br />3 Sample Matrix Spike <br />Run: ICPMS2- C_130809A <br />08/09/13 17:30 <br />Arsenic <br />0.512 mg /L <br />0.0010 <br />99 <br />70 130 <br />Molybdenum <br />0.956 mg /L <br />0.0010 <br />112 <br />70 130 <br />Uranium <br />4.14 mg /L <br />0.00030 <br />70 130 <br />A <br />Sample ID: C13080122 -001 BMSD3 <br />3 Sample Matrix Spike Duplicate <br />Run: ICPMS2- C_130809A <br />08/09/13 17:32 <br />Arsenic <br />0 517 mg /L <br />0.0010 <br />100 <br />70 130 1.0 <br />20 <br />Molybdenum <br />0.956 mg /L <br />0.0010 <br />112 <br />70 130 0.1 <br />20 <br />Uranium <br />417 mg /L <br />000030 <br />70 130 0.7 <br />20 A <br />Qualifiers: <br />RL - Analyte reporting limit. <br />ND - Not detected at the reporting limit. <br />A -The analyte level was greater than four times the spike level. In <br />accordance with the method % recovery is not calculated. <br />MDC - Minimum detectable concentration <br />Page 6 of 12 <br />